NL8800514A - Communicatiestelsel. - Google Patents
Communicatiestelsel. Download PDFInfo
- Publication number
- NL8800514A NL8800514A NL8800514A NL8800514A NL8800514A NL 8800514 A NL8800514 A NL 8800514A NL 8800514 A NL8800514 A NL 8800514A NL 8800514 A NL8800514 A NL 8800514A NL 8800514 A NL8800514 A NL 8800514A
- Authority
- NL
- Netherlands
- Prior art keywords
- harmonic
- frequency
- transmitter
- signal
- communication system
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K11/00—Marking of animals
- A01K11/006—Automatic identification systems for animals, e.g. electronic devices, transponders for animals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
- B61L25/02—Indicating or recording positions or identities of vehicles or trains
- B61L25/04—Indicating or recording train identities
- B61L25/045—Indicating or recording train identities using reradiating tags
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
- G01S13/75—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors
- G01S13/751—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal
- G01S13/758—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal using a signal generator powered by the interrogation signal
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
- G06K19/0724—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs the arrangement being a circuit for communicating at a plurality of frequencies, e.g. for managing time multiplexed communication over at least two antennas of different types
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Computer Networks & Wireless Communication (AREA)
- Theoretical Computer Science (AREA)
- Remote Sensing (AREA)
- Radar, Positioning & Navigation (AREA)
- Environmental Sciences (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Artificial Intelligence (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Birds (AREA)
- Mechanical Engineering (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Television Systems (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Noise Elimination (AREA)
- Radio Relay Systems (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK110387A DK110387A (da) | 1987-03-03 | 1987-03-03 | Kommunikationsanlaeg |
| DK110387 | 1987-03-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL8800514A true NL8800514A (nl) | 1988-10-03 |
Family
ID=8101033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL8800514A NL8800514A (nl) | 1987-03-03 | 1988-02-29 | Communicatiestelsel. |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS63229924A (da) |
| DE (1) | DE3805343A1 (da) |
| DK (1) | DK110387A (da) |
| GB (1) | GB2202108A (da) |
| NL (1) | NL8800514A (da) |
| SE (1) | SE8800724L (da) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE464844B (sv) * | 1989-08-23 | 1991-06-17 | Henoch Bengt | Foerfarande foer att kontaktloest oeverfoera information mellan en saendar/mottagningsenhet och en transponder |
| JP3018708B2 (ja) * | 1992-01-31 | 2000-03-13 | 神鋼電機株式会社 | 無線通信装置 |
| US5317330A (en) * | 1992-10-07 | 1994-05-31 | Westinghouse Electric Corp. | Dual resonant antenna circuit for RF tags |
| US5477215A (en) * | 1993-08-02 | 1995-12-19 | At&T Corp. | Arrangement for simultaneously interrogating a plurality of portable radio frequency communication devices |
| EP0670558B1 (en) * | 1994-03-04 | 2000-05-03 | NCR International, Inc. | Modulated backscatter wireless communication system having an extended range |
| FR2723238B1 (fr) * | 1994-07-27 | 1996-09-13 | Suisse Electronique Microtech | Systeme de communication entre une station de base et un transpondeur passif |
| US6650230B1 (en) | 1998-11-19 | 2003-11-18 | Ncr Corporation | Modulated backscatter wireless communication system having an extended range |
| DE10021394A1 (de) * | 2000-05-03 | 2001-11-15 | Sab Service Und Fertigung Von | Automatisches Tor zum Durchlassen eines Tieres |
| DE102005061438A1 (de) * | 2005-12-22 | 2007-07-05 | Atmel Germany Gmbh | Transponder und Verfahren zum Betreiben eines Transponders |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3137847A (en) * | 1959-11-04 | 1964-06-16 | Link Aviation Inc | Signalling system |
| GB1085704A (en) * | 1964-10-30 | 1967-10-04 | Nat Res Dev | Apparatus for detecting an object |
| GB1297279A (da) * | 1969-07-09 | 1972-11-22 | ||
| GB1257692A (da) * | 1969-07-28 | 1971-12-22 |
-
1987
- 1987-03-03 DK DK110387A patent/DK110387A/da not_active Application Discontinuation
-
1988
- 1988-02-19 GB GB08803870A patent/GB2202108A/en active Pending
- 1988-02-20 DE DE19883805343 patent/DE3805343A1/de not_active Withdrawn
- 1988-02-29 NL NL8800514A patent/NL8800514A/nl not_active Application Discontinuation
- 1988-03-01 JP JP4943988A patent/JPS63229924A/ja active Pending
- 1988-03-02 SE SE8800724A patent/SE8800724L/xx not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| DK110387A (da) | 1988-09-04 |
| SE8800724D0 (sv) | 1988-03-02 |
| GB8803870D0 (en) | 1988-03-23 |
| JPS63229924A (ja) | 1988-09-26 |
| GB2202108A (en) | 1988-09-14 |
| DE3805343A1 (de) | 1988-09-15 |
| DK110387D0 (da) | 1987-03-03 |
| SE8800724L (sv) | 1988-09-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11042720B2 (en) | Systems and methods to determine motion parameters using RFID tags | |
| EP0592781B1 (en) | Article surveillance system with frequency hopping | |
| JP5226185B2 (ja) | 探知測距装置 | |
| US5841214A (en) | Identification mark operating with acoustic surface waves | |
| NL8800514A (nl) | Communicatiestelsel. | |
| ATE290301T1 (de) | Kommunikationssystem zur detektion von ausserhalb des systems erzeugter interferenz | |
| DE3150704A1 (de) | Sende- und empfangsschaltung fuer eine einrichtung zur automatischen identifizierung von objekten und/oder lebewesen | |
| US6867730B2 (en) | Method of interference suppression in a radar device and a radar device | |
| DE3438052C2 (da) | ||
| CA2219381A1 (en) | Modulated backscatter sensor system | |
| WO2004015439A3 (en) | Improved mixers with a plurality of local oscillators and systems based thereon | |
| US6738313B2 (en) | System for detecting distances using chaotic signals | |
| US20190020417A1 (en) | Rf-photonic pulse doppler radar | |
| US5227799A (en) | Road void search radar system | |
| GB1596378A (en) | Amplifier systems | |
| JP3668941B2 (ja) | パルスレーダ装置 | |
| JP2004088755A (ja) | 通信システム、通信システムの質問器及び応答器 | |
| FI57671B (fi) | Anordning foer oeverfoering av information fraon en informationsgivare till en informationssoekare | |
| JP6498410B2 (ja) | 無線通信システム | |
| CN114895265B (zh) | 防信息泄露的通感信号接收方法、装置、雷达设备及介质 | |
| US5335626A (en) | Linear energy curtain | |
| US5883922A (en) | FSK communication device for digital information | |
| US20030095033A1 (en) | Data carrier for transmitting data with different repetition frequencies | |
| JPH09230038A (ja) | 電子監視装置 | |
| JPH0738463A (ja) | 移動体識別システムに用いられる質問装置 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BV | The patent application has lapsed |